Double barn-door lock



Feb. 24. 925.

P. OLSON DOUBLE BARN Doon LOCK xilegawJulyv so, 192s 2 Sheets-Sheet, v1.4

WZ??? foss v Patented Feb. 24, 1925.

PALMER, arson, or LooMIsl NEBRASKA.

DOUBLE" BARN-DOOR LOCK.

Application filed July 30, 1923. Serial No. 654,586.

To all 107mm t may concern.'

Be it known that I, PALMER OLsoN, a citizen of the United States, residing at Loomis, in the' county` of Phelps and `State of Nebraska, have invented certain new and useful Improvements in Double Barn-Door Locks, of which the following is a specification.

In carrying out the present inventionl it is my purpose toprovide a highly novel anduseful form oflock particularly adapted for use in conjunction with barn doors of the double type, i. e., barn doors that include anupper and lower swinging` section, the nature of this lock being such `as to maintain both of the sections in locked position and whereby the lock may be so manipulated as to release the upper doorsection `but maintainthe lower door section locked.

The primary object of my invention is the provision of such a barn doorlock that may be manufactured, marketed, and stalled at minimum cost, the nature of the same `being such that when once installed the liability of same becoming out of order is reduced to a minimum.

A still further object of my invention is to provide a lock for double barn doors wherein the same may be moved to a'locked or unlocked position either within or without the barn and wherein said lock may be moved to a position for unlocking the upper door section but maintaining the lower door section in a locked position.

Other objects of the invention willbe apparent as the nature of the sanieis better understood, the invention comprising the construction, combination and arrangement of parts set forth in the following specification, shown in the accompanying drawings and claimed.

In the drawings wherein like reference characters indicate corresponding parts throughout the several views, and wherein;

Figure 1 is a front elevational view of my improved double barn door lock applied, the same being shown in an unlocked position,

Figure 2 is a similar view of the inven- -tion but shown in such aposition as to maintain both of the barn door sections in a locked position, the dotted line position of the locking elements, per se, being such as to permit of an opening of the upper door section and at the same time maintaining the lower door section locked,

Figure 3 is a longitudinal section taken substantially upon the line 3 3 of Figure 1,

`Figure 4 is a vertical section upon the line 4 4 of Figure 2,

Figure 5 is a longitudinal section upon the line 55 of Figure 2, and

Figure 6` is an enlarged vertical cross section showing more clearly the keeper element for the upper locking pin, per se.

Now having particular reference to the drawings, 5 and 6 designate respectively the upper and lower hinged sections of a conventional type double barn door, 7 the wall of the barn and 8 the usual post upon the insideof the lbarn and at one side of the door opening. Each of the door sections 5 and is providedwith arig'zd hasp 9 that extends at one end beyond the free edge of the door section and is formed with an elon gated slot 10 for engagement over an eye bolt 11 upon the outer side of said barn 7 andlhadjacent the edge of the door opening.

. Directly above the uppermost eye bolt 111 and in alinement therewith is an elongated tubular element 19. maintained in position upon the wall of the barn thru the medium of metal straps 13. Directly above the lower most one of said eye bolts 11 and in vertical alinement with the sleeve 12 is a sleeve plate 14.

15 denotes generally the locking element, per se, of my invention, which locking element comprises a single length of spring steel wire, the upper and lower ends thereof being curved inwardly at 1G and 17 respectively and then downwardly for providing locking pins 18 and 19 respectively.

The uppermost locking pin 18 has movement within said tubular element 12, which tubular element is open at its lower end and closed at its upper end and necessarily slotted upon its inner side at 20 for the greater portion of its length, the uppermost strap 13 being also slotted as shown in Figure 6. The lowernfiostv locking pin 19 is of greater length than the uppermost pin 18 and moves within said sleeve plate 14.

It will therefore be seen that when the door sections 5 and 6 are closed, the locking element 15 may be forced downwardly for consequently engaging the lacking pins 18 and 19 thru eye bolts 114411 for thereby maintaining said door sections locked. By moving the locking element to the dotted line position of Figure 2, the upper door member will be unlocked while the lower door member will be still locked for thereby permitting the barn to be ventilated without allowing the animals to escape therefrom.

In addition to being slotted at 20, the said tubular element l2 is so cut as to provide a spring tongue 21, the upper inner end of which is forme-d with a rounded head 22 for engagement within spaced notches 23 formed in the adjacent side of said locking pin 1S, whereby the locking element 15 is maintained within with a totally or partially unlocked position.

Positioned within alined openings of the before mentioned door post 8 and wall of the barn 7 is a bearing sleeve 24 thru which extends a pin 25 which has free rocking movement within said sleeve, the end of this pin upon the outer side of the building being bent inwardly at 2G and lugged at 2'?, this inwardly bent portion being positioned beneath the inwardly bentportion 16 of said locking bar 15. The end of the pin 25 within the barn is so formed as to provide a handle 27, it being at once apparent that when the locking element 15 is moved to the locking position of Figure 2 the same may be raised to the dotted line position from within the barn by rotating the pin 25 and thereby forcing upwardly said locking element for consequently disengaging the pin 18 from its complementary eye bolt 11. The upper door section 5 may now be opened and if desired, the lower door section 6 may also be unlocked by reaching through the door opening and raising upwardly upon said locking element 15.

Numerous advantagesl of. a double barn door lock of this character will be at once apparent to those skilled in the art and even though I have herein set forth the most practical embodiment of the invention with which I am at the present time familiar, it is nevertheless to be understood that minor changes may be made within the invention without departing from the spirit and scope of the appended claim.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

A lock structure comprising strap members, a tube mounted in the strap members and provided at its side with a longitudinally disposed slot and having at its opposite side a spring tongue with a head disposed toward the slot, a pin slidably mounted in the tube and having spaced notches adapted to receive said head, the pin being provided with an angularly disposed portion which passes through the slot and adapted to move along the same, and a lifter having an active end portion disposed within the path of movement of the angularly disposed portion of the pin.

In testimony whereof I aitix my signature.

PALMER OLSON. 

